Does electromagnetic radiation cause any problems?

The only way to adequately answer your question is with boring bunches of numbers relating to frequency, power levels and exposure criteria. there is not one specific guideline concerning electromagnetic radiation exposure. Rule of thumb is stay away from any transmitting antenna with an effective radiated power level of 50 watts or higher(this is for the communication spectrum) ELF or low frequency radiation requires a higher level of caution with a greater perimeter. The higher levels--microwave and higher are not as harmful but still need caution when standing in front of a transmitting source. As far as depletion rates this type of radiation has an almost instant decay rate. I hope this helps you a little